A new latching control technology for improving wave energy conversion

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dc.contributor.authorSheng, Wanan
dc.contributor.authorAlcorn, Raymond
dc.contributor.authorLewis, Anthony
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2016-06-02T15:28:06Z
dc.date.available2016-06-02T15:28:06Z
dc.date.issued2014-11
dc.date.updated2015-01-20T15:30:29Z
dc.description.abstractExtracting wave energy from seas has been proven to be very difficult although various technologies have been developed since 1970s. Among the proposed technologies, only few of them have been actually progressed to the advanced stages such as sea trials or pre-commercial sea trial and engineering. One critical question may be how we can design an efficient wave energy converter or how the efficiency of a wave energy converter can be improved using optimal and control technologies, because higher energy conversion efficiency for a wave energy converter is always pursued and it mainly decides the cost of the wave energy production. In this first part of the investigation, some conventional optimal and control technologies for improving wave energy conversion are examined in a form of more physical meanings, rather than the purely complex mathematical expressions, in which it is hoped to clarify some confusions in the development and the terminologies of the technologies and to help to understand the physics behind the optimal and control technologies. As a result of the understanding of the physics and the principles of the optima, a new latching technology is proposed, in which the latching duration is simply calculated from the wave period, rather than based on the future information/prediction, hence the technology could remove one of the technical barriers in implementing this control technology. From the examples given in the context, this new latching control technology can achieve a phase optimum in regular waves, and hence significantly improve wave energy conversion. Further development on this latching control technologies can be found in the second part of the investigation.en
dc.description.sponsorshipScience Foundation Ireland (Charles Parsons Award at Hydraulics and Maritime Research Centre (HMRC))en
dc.description.statusNot peer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationSheng, W., Alcorn, R. and Lewis, T. (2014) 'A new latching control technology for improving wave energy conversion', 5th International Conference on Ocean Energy (ICOE), Halifax, Nova Scotia, Canada, 4-6 November.en
dc.identifier.urihttps://hdl.handle.net/10468/2681
dc.language.isoenen
dc.relation.ispartof5th International Conference on Ocean Energy (ICOE)
dc.relation.urihttps://www.icoe-conference.com/publication/a-new-latching-control-technology-for-improving-wave-energy-conversion/
dc.rights© 2014, the authorsen
dc.subjectWave energy converteren
dc.subjectPower take-offen
dc.subjectWEC controlen
dc.subjectWEC optimumen
dc.subjectLatching controlen
dc.subjectInteraction of wave and structureen
dc.subjectWAMITen
dc.titleA new latching control technology for improving wave energy conversionen
dc.typeConference itemen
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